Privacy Policy

Last updated: January 3, 2026

DSA Prep ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application.

Information We Collect

We collect the following information when you use DSA Prep:

• Account Information: When you create an account, we collect your email address and password. Passwords are securely hashed and never stored in plain text.
• Learning Progress: We store your study progress, including which topics you've marked as "known," "needs review," or "unseen."
• Bookmarks: Topics you bookmark for later review.
• App Preferences: Your selected study categories and app settings.

How We Use Your Information

We use your information to:

• Provide and maintain the DSA Prep service
• Sync your learning progress across devices
• Authenticate your account and keep it secure
• Enable password reset functionality
• Improve and optimize the app experience

Data Storage and Security

Your data is stored using Google Firebase, a secure cloud platform. We implement appropriate security measures including:

• Encrypted data transmission (HTTPS/TLS)
• Secure authentication via Firebase Authentication
• Database security rules that restrict access to your own data
• Local device storage for offline functionality

Data Sharing

We do not sell, trade, or share your personal information with third parties. Your data is only used to provide the DSA Prep service. We may disclose information if required by law or to protect our rights.

Third-Party Services

DSA Prep uses the following third-party services:

• Google Firebase: For authentication and data storage. See Firebase Privacy Policy.

Your Rights

You have the right to:

• Access: Request a copy of your personal data
• Correction: Update or correct your information
• Deletion: Request deletion of your account and all associated data
• Portability: Request your data in a portable format

Data Retention

We retain your data for as long as your account is active. If you delete your account, we will delete all associated personal data within 30 days, except where retention is required by law.

Deleting Your Data

To delete your account and all associated data:

• Open the DSA Prep app
• Go to your Profile
• Select "Delete Account"
• Confirm deletion

Alternatively, contact us at the email below to request data deletion.

Children's Privacy

DSA Prep is intended for users preparing for technical interviews and is not directed at children under 13. We do not knowingly collect information from children under 13.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new policy on this page and updating the "Last updated" date.